The term 'adjust for better functioning' can be summarized by the word 'TUNE'. Tuning is a process of making small changes to a system or device in order to improve its performance. This process is often used in engineering and technology, as well as in music. In engineering and technology, tuning involves adjusting the settings of a system or device to optimize its performance. In music, tuning involves adjusting the pitch of an instrument to make it sound better.